Abstract: A container for a rod-shaped material, comprising: an inner cylinder body having at least one longitudinal through hole formed in a side wall of the inner cylinder body; an outer cylinder body having at least one spiral groove formed on an inner wall of the outer cylinder body; and a support cylinder body for supporting the rod-shaped material, an outer wall of the support cylinder body having at least one convex column; wherein the inner cylinder body is accommodated in the outer cylinder body and rotatable relative to the outer cylinder body, the support cylinder body is accommodated in the inner cylinder body, the convex column is inserted into the longitudinal through hole and the spiral groove, such that the convex column moves along the spiral groove when the inner cylinder body rotates relative to the outer cylinder body; wherein at least one elastic pad and at least one elastic sheet are formed between the inner cylinder body and the outer cylinder body, the elastic pad is floatingly arranged in a rad

Abstract: The present disclosure provides a UAV operation route planning method, a UAV pesticide spreading planning method and device for providing improvements on the operation accuracy of UAV. The UAV operation route method comprises steps of: obtaining a plurality of sub-areas of an operation area of a UAV; exhausting operation orders of the sub-areas and waypoint sequences in each of the sub-areas, respectively; planning routes according to the operation orders of the sub-areas and the waypoint sequences in each of the sub-areas to obtain all routes in the operation area; and determining a route in all the routes having a total voyage meeting a preset constraint condition as an optimal operation route.

Abstract: A method for forming a gate structure of a 3D memory device is provided. The method comprises: forming, on a substrate, an alternating dielectric stack including a plurality of dielectric layer pairs, each of the plurality of dielectric layer pairs comprising a first dielectric layer and a second dielectric layer different from the first dielectric layer; forming a slit penetrating vertically through the alternating dielectric stack and extending in a horizontal direction; removing the plurality of second dielectric layers in the alternating dielectric stack through the slit to form a plurality of horizontal trenches; forming a gate structure in each of the plurality of horizontal trenches; forming a spacer layer on sidewalls of the slit to cover the gate structures, wherein the spacer layer has a laminated structure; and forming a conductive wall in the slit, wherein the conductive wall is insulated from the gate structures by the spacer layer.

Abstract: The disclosure belongs to the technical field of integrated navigation under non-ideal conditions, and in particular relates to a robust filtering method for integrated navigation based on a statistical similarity measure (SSM). In view of the situation that there are normal beam measurement information of the DVL and beam measurement information with a large error simultaneously in a SINS/DVL tightly integrated system, and aiming at the problem that the existing robust filters of an integrated navigation system process the measurement information in a rough manner and are likely to lead to loss of normal measurement information, the disclosure proposes a novel robust filtering method based on decomposition of multi-dimensional measurement equations and the SSM.

Abstract: A three-dimensional (3D) NAND memory device is provided. The device comprises an alternating stack including a plurality of dielectric/conductive layer pairs each comprising a dielectric layer and a conductive layer. The device further comprises a conductive wall vertically penetrating through the alternating stack and extending in a horizontal direction, and a spacer layer on sidewalls of the conductive wall configured to insulate the conductive wall from the conductive layers of the alternating stack. The spacer layer comprises a first spacer sublayer having a first dielectric material, a second spacer sublayer having a second dielectric material, and a third spacer sublayer having a third dielectric material. The second spacer is sandwiched between the first spacer sublayer and the third spacer sublayer. A second k-value of the second dielectric material is higher than a first k-value of the first dielectric material and higher than a third k-value of the third dielectric material.

Abstract: A chassis and a power supply system include a body and a heat dissipation component configured to dissipate heat for heat generation modules in the body. The heat dissipation component includes a spacer board and at least one fan disposed on the spacer board. An annular air duct includes a first air duct surrounded by the spacer board and a second air duct located between the spacer board and sidewalls of the body, and the first air duct communicates with the second air duct. The annular air duct is formed in the body by using the spacer board, so that air flow can be implemented with a small quantity of fans, and temperatures of the air in the body are balanced, thereby improving a heat dissipation effect, reducing a quantity of fans, reducing space occupied by the fans, and increasing space for placing components in the body.

Abstract: A memory device includes a staircase region and an array region, along a first lateral direction; a wall structure in the staircase region; and a first separation structure in the array region and arranged along the first lateral direction with the wall structure. The wall structure includes dielectric pairs of a first dielectric layer and a second dielectric layer stacked in the staircase region. The first separation structure is vertically through a stack structure in the array region. The stack structure includes pairs of the first dielectric layer and an electrode layer.

Abstract: An APP remote control method and related devices. wherein method includes: a service device receiving a first operation instruction, where the first operation instruction is generated by a terminal device based on a first input on a start of an application icon of a first application program, and/or on a user interface of the first application program, the first application program runs on the service device, and the application icon and the user interface of the first application program are displayed on the terminal device; the service device responding to the first operation instruction through the first application program, and generating a first response result; and the service device extracting a first interface drawing instruction from the first response result, and sending it to the terminal device, where the first interface drawing instruction is used to draw an interface.

Abstract: An approach is provided for compression of sparse data for machine learning or equivalent tasks. The approach involves, for instance, receiving data that is binned into a plurality of bins. The data, for instance, represents a spatial surface such as a geographic region. The approach also involves processing the data by applying a compression criterion to classify one or more bins of the plurality of bins as either data-containing bins or empty bins. The approach further involves establishing a space filling curve over the plurality of bins, wherein the space filling curve linearizes the plurality of bins according to a placement order. The approach further involves storing the data-containing bins of the plurality of bins in a compressed data structure based on the placement order of the space filling curve.

Abstract: A micro-electronic micro-connection deep-cavity welding capillary, comprising a cylindrical capillary body, one end of the capillary body is a frustoconical welding end, a stepped unfilled corner on an end face of the welding end in the lengthwise direction, the remaining end face of the welding end is a welding end face, a spherical segment-shaped through groove in the welding end face, a columnar first wire threading hole facing the interior of the capillary body in the other end face of the capillary body in the lengthwise direction, a columnar second wire threading hole that is coaxial with the first wire threading hole in a first side surface, not adjacent to the welding end face, of the unfilled corner, and a transition hole that connects the first wire threading hole to the second wire threading hole and has an isosceles-trapezoid-like cross section inside the capillary body.

Abstract: A memory device includes a substrate; and a stack structure, including alternately arranged first dielectric layers and electrode layers. In a first lateral direction, the memory device includes array regions and a staircase region arranged between array regions. In a second lateral direction, the stack structure includes a first block and a second block, each including a wall-structure region and extending along the first lateral direction. The wall-structure regions of the first block and the second block are adjacent to each other and together form a wall structure in the staircase region. The memory device also includes a first separation structure, formed through the stack structure and positioned between the first block and the second block in array regions along the first lateral direction; and second dielectric layers positioned between the first block and the second block in the staircase region, and alternated with the first dielectric layers.

Abstract: The method and materials of this invention make possible substantially faster techniques for organic-aqueous extractions and routine chemical reactions work-ups. The inventive material uses silicone elastomer-coated glass powders, magnetic powders, and sponges as absorbents to extract organic products from an aqueous mixture. After separation from the mixture, these different forms now loaded with organic products can serve as a convenient input for flash chromatographic separations or other processing. With these techniques, tedious liquid-liquid extractions are replaced by a simple solid filtration or transfer and emulsion formation is eliminated. These versatile sorbents can also be used for larger scale work-ups, various extractions of organics from an aqueous solution (e.g., water purification) or gas phase and various analytical or other applications.

Abstract: The present disclosure relates to a three-dimensional memory and a method for manufacturing the same. The three-dimensional memory includes a gate stack structure including a core area and a step area which are disposed in juxtaposition and in direct contact in a first direction; a dummy separation structure penetrating through the step area in the first direction; and a gate separation structure penetrating through the core area in the first direction, the gate separation structure having a first end in contact with the dummy separation structure in the first direction, the dummy separation structure having a second end in contact with the gate separation structure in the first direction, and the first end being located within the second end.

Abstract: This disclosure provides an image recommendation method, a client, a server, a computer system and a medium. The method includes acquiring an image, sending the acquired image to a server, such that the server extracts a scale invariant feature of the acquired image and performs retrieval of identical images according to the scale invariant feature of the acquired image, and such that the server extracts a multi-scale feature of the acquired image and performs retrieval of similar images according to the multi-scale feature of the acquired image, and receiving at least one recommended image. The at least one recommended image is based on result of the identical image retrieval and result of the similar image retrieval.

Abstract: The invention provides a method for initial alignment of radar assisted airborne strapdown inertial navigation system. By calculating the slant distance and angular position between the radar and the airborne inertial navigation equipment, a nonlinear measurement equation for the initial alignment of the radar assisted inertial navigation system is obtained. The unscented Kalman filter algorithm is used to estimate and compensate the error amount of strapdown inertial navigation system to complete the initial alignment task. The significance of the present invention is to provide an in-flight initial alignment solution when the global positioning system is limited, which has fast convergence speed and high estimation accuracy and has high engineering application value.

Abstract: The present disclosure relates to a dense boron nitride ceramic with high plasticity and high elasticity and the preparation process thereof. The preparation process includes the following steps: A) weighing a predetermined amount of spherical boron nitride nano-powders with onion-like structure, pre-pressing them into a pre-pressed body and putting the pre-pressed body into a sintering mold; B) putting the pre-pressed body obtained in step A) together with the sintering mold into a spark plasma sintering apparatus or a hot-pressing sintering apparatus for sintering; and C) taking out the mold after cooling, and removing the mold to obtain the boron nitride dense ceramic block with high plasticity and high elasticity. According to the present invention, a boron nitride ceramic with high strength and high plasticity is obtained via sintering spherical boron nitride nano-powders with onion-like structure.

Abstract: The present disclosure relates to salts and crystalline forms of a compound having the formula: Also described are processes for the production of the salts and crystalline forms described herein.

Abstract: A method and system for ecological operation of total phosphorus (TP) export of a cascade hydropower station are provided. The method includes: integrating total power generation and TP export of the cascade hydropower station into a single operation objective, and obtaining an operation objective under different weight ratios; optimizing the obtained operation objective; and obtaining a water level operation process corresponding to total power generation and TP export under the current operation objective through the optimized operation objective. The present invention alleviates an ecological and environmental problem caused by the construction of the hydropower station from a water quality mechanism, and can be widely used, for example, in the ecological optimal operation of cascade hydropower stations in a river basin.

Abstract: A method for positioning a supermarket shopping cart, a system for positioning a supermarket shopping cart and a supermarket shopping cart. A method for positioning a supermarket shopping cart provided by the present disclosure includes: acquiring a first reference image of a supermarket, and processing a first reference image to obtain a partition in which a shopping cart is located as a positioning partition, in which the supermarket comprises a plurality of partitions; receiving distance information sent by at least one signal transmitter provided in the positioning partition, in which each partition is provided with at least one signal transmitter; and obtaining a first positioning position of the shopping cart, according to distance information sent by at least one signal transmitter corresponding to the positioning partition, and determining an actual position of the shopping cart based on the first positioning position of the shopping cart.